Question

Matter ' X ' is heated on a Bunsen flame. Initially its temperature increases and when the temperature reaches' T ' it started to change its state to ' Y ' where it's kinetic energy of the particles is maximum. X takes the shape of the container containing it.

i) Identify the physical States of X and Y. Give an example.
ii) What is the temperature ' T ' ?
iii) What is the status of the pressure during the change of state?


​

Answer 1

The physical state of X and y is gas and liquid respectively.

Example of X is water vapour and example of Y is water.

The temperature T is the latent heat of fusion.

The pressure also changes when the state changes and pressure is maximum in solid then in liquid and then in gas.

I hope my answer will help you.